A planet-hunting astrograph built in the 1920s to seek out the so-called "Planet X" beyond Uranus.

A sharp bend in a dramatic river canyon cut through red rocks.

An enormous dragon scales the walls of this 17-story temple.

The headquarters of the Mahanikai school of Buddhism, Thailand's largest monastic order.

This statue took 60 years to complete.

Bangkok celebrated its shifting monarchy with a militaristic homage to democracy.

The pillars inside this small, ornate shrine hold Bangkok's horoscope within them.

This dazzling Buddhist temple was constructed from over one million ceramic tiles salvaged from a British shipwreck.

This enormous gold Buddha statue was hidden inside a stucco decoy for centuries.

Founded during the Ayutthaya era, this unique Buddhist temple remains shipshape to this day.

This mysteriously shaped boulder may have been used for human sacrifice in ancient times.

This elephant kraal is the only one remaining in Thailand, dating back to the 16th century when these massive mammals were integral players in war and trade.

One of Ayutthaya’s most iconic locations is a mysterious, hauntingly surreal miracle.

Step back in time while shopping inside this local store.

A pop-culture attraction outside of Dyersville, Iowa, hits a home run.

In this rural town square, a unique statue honors the inventor of the microchip.

This historic hotel invented the chocolate brownie.

Illegal drag racing two stories beneath Chicago’s streets.

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

An unexpected but incredible collection of wildlife dioramas spanning rainforests, swamps, forests, and plains.

More than 7,000 gallons of water pour over these cascading red quartzite waterfalls every second.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

The National Park Service’s best-kept secret with views that rival any in D.C.