3 . While beach vacations may be a great way to take your mind off work, people tend to forget about lakes, which can be as equally beautiful a travel destination as beach holidays. If you are looking for some peace on your vacation, we have some recommendations for you in the Caucasus.

1). Lake Van

Lake Van is the must－visit of all lakes on this list. The largest lake in Turkey, Lake Van is located on the eastern shore of Turkey and is also the most accessible lake there. It's situated at 5，380ft above sea level, and unique to lakes around the world, the water is high in salt content.

2) .Lake Cildir

Lake Cildir is located in Ardahan Province, East Turkey, near the borders of Georgia and Armenia. It is the second largest freshwater lake in Eastern Turkey, and many tourists are not aware of this beautiful attraction. Lake Cildir is surrounded by mountains of the Caucasus. The lake freezes during late November. If the winter is not harsh, you can try some lake activities like ice skating and ice fishing.

3). Lake Paravani

Lake Paravani is located in the south of Georgia. This time, the elevation(海拔)gets a little higher, as this lake is located at 6，801ft above sea level. At this level, altitude sickness can occur and it is a good idea to bring medication for altitude sickness. Being a volcanic lake makes for a more interesting experience. The lake is best known for fishing.

4). Lake Seven

Lake Seven is situated in the central part of Armenia, in Gegharkunik Province. It is the largest lake in Armenia, located at 6，200ft above sea level. Along the lake shore, there are various kinds of accommodation such as resorts and hotels, with plenty of activities to take part in, such as windsurfing, swimming and sunbathing. Meanwhile, do not forget to visit one of the famous cultural monuments, the Sevanavank Monastery(修道院), and it offers a great view of the lake as well.

5 . Oregon is a beautiful Northwest State, filled with amazing places to visit. Many of these wonderful places are within National Parks. Here are some of this state’s fantastic national parks.

Crater Lake National Park

Crater Lake is one of the most unique areas in Oregon and the country. The park makes a great summer and winter time place to visit. Most of the year the park is covered in snow, and the summer window is very short, lasting only from July to October. During the short summer visitors can enjoy the Rim Drive, hiking, camping, fishing, swimming in the lake and even take a boat tour of the lake.

Fort Vancouver National Historic Site

Visitors to Fort Vancouver have the chance to learn about the history of the fur trade in the Pacific North-west. This place offers travelers the chance to learn about the cultures that lived in the area, and it also has information about the military history of this place.

John Day Fossil Beds National Monument

This amazing National Monument protect the changes of ecosystems over 40 million years. Visitors can learn about the amazing history of how plant and animal changed. This park has three parts, where visitors can enjoy the views and learn about the history of this place.

Oregon Caves National Monument

Visitors to the Siskiyou Mountains can explore Oregon Caves National Monument. This National Monument has marble caves. These caves were formed as rainwater from forests above slowly dissolved the surrounding marble, creating these amazing caves. Visitors can take tours of the caves, led by a guide.

7 . Most of our 400 national parks and historic sites are free, and even the ones that aren't offer several free days during each year. And don't forget admission and tours are free at all our state capitol buildings. So, pull out a map and start planning to find out your destinations.

California: Jelly Belly Factory

Who doesn't like Jelly Bellies? Free tours of the Jelly Belly Factory are offered daily at 1 Jelly Belly Lane in Fairfield, California. Free samples, too! Can't decide which flavor to try first? Check out our ranking on the best jelly bean flavors.

Colorado: United States Air Force Academy

Driving around and taking in the spectacular natural beauty of Colorado is, of course, free. If you know some kids who might be interested in becoming a future cadet, then head to the United States Air Force Academy, just outside Colorado Springs, where free tours are offered daily.

Connecticut: Yale University

New Haven, Connecticut was the first place in the U.S. to offer pizza by the slice to hungry customers, including students of a little college called Yale University. While in New Haven, you can go on a tour of the campus, free of charge, every day of the week. It's the Alma mater(母校) of both President Bushes, Bill and Hillary Clinton, journalist Bob Woodward, and Samuel F.B. Morse, inventor of the Morse code to name a few. Make sure you check out the best state gifts from each state while you're at it.

Florida: Beaches

From the spectacular sunsets in Key West, the southernmost point in the U.S. mainland, to strolling the streets way up north in historic and charming Fernandina on Amelia Island, Florida is chock full of free beaches to enjoy.

9 . What does Beijing’s Palace Museum look like at night? Many people don’t know the answer to this question, as it closes at around 4:30 p.m in winter and 5:00 p.m in summer. However, to celebrate the Lantern Festival, Beijing’s Palace Museum opened its door to the public after dark——for two nights only. That’s a first in 94 years!

Although people could get free tickets on the museum’s website, it was difficult to get a ticket. The website even stopped working for a while because too many people visited it at the same time. Zhang Zhifu, a 77-year-old woman, received a ticket from the museum as a gift.   “I grew up in Beijing and I visited the Palace Museum every year, but I never got to see it at night, It is truly an honor.” She said.

In the past celebrating the Lantern Festival was a tradition for the imperial(皇帝的) family. “We want to pass the tradition on and give people more festival experience.” Said Shan Jixiong, the head of the Palace Museum. On the night of February 19th, 2019, about 3,000 visitors spent the Lantern Festival in the Palace Museum.

Nowadays, time travel is just about everywhere you look,    1    films to TV shows and even literature.Our society has become obsessed with the idea of traveling through time.

However, that wasn't true just 150 years ago.The gate was opened by H.G.Wells' novel, The Time Machine, which     2     (publish) in 1895.In this book, Wells describes a man who builds a machine that enables him     3     (move) throughout the course of history and into the future.The story is important because it views time as something     4     (flow).

Before this book came out, time was     5     (basic) viewed as a one­way street.You could only go forward, and only at one speed.In this way, Wells'     6     (create) account transformed the way people viewed time and time travel.

It was so successful largely because it came out at the end of 19th century when tremendous change was in the air.As the    7     (twenty) century dawned, people were becoming incredibly excited for the future.It was a period of huge technological as well as scientific    8     (grow) and, for the first time ever, people were living in a way that was dramatically different from    9    generation before them.

In other words, it was the first time that the past, future and present would be entirely different.This simple historical moment is    10    made time travel so fascinating.