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

From atop a hill at the center of Cape Town, a cannon has been signalling the time since 1806.

This breathtaking island on Rwanda’s Lake Kivu is a haven for thousands of fruit bats.

This Annapolis home was built by one of the signers of the Declaration of Independence.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

Ships still use this historic lighthouse to navigate dangerous, island waters.

The location where the American Revolution ended.

These animal carvings stand as representations of India and Britain.

A 19th-century cemetery device to ensure that the prematurely buried would be "saved by the bell."

Designed as a 17th-century watchtower, the former fort is now a popular sunset haunt.

The compass on its front was a handy tool for 17th-century merchants who needed to know the direction of the wind.

This memorial museum chronicles the apocalyptic destruction of the First World War.

You can spot this teeny tiny stained-glass window from the Bonifacius bridge.

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

The place of worship for Zoroastrians, Mumbai's Parsi fire temples use fire and ash for purification.

Constructed in 1923, this is one of several heritage drinking fountains across Mumbai.

Mumbai's angel.

A tribute to the area's namesake and King Edward VII.

One of the last remnants of an 18th-century fort in the business district of Mumbai.

A drinking water fountain in the heart of Mumbai, built by a father in memory of his son.

An oft-overlooked, magically musical monolith that stands majestically between Arlington Cemetery and the Iwo Jima Memorial.

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

A glimpse at Walt Disney's vision for a "community of tomorrow," in miniature.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.