With over 80 lakh visitors per year, the iconic Taj Mahal in Agra has been recognised as the second best UNESCO world heritage site in the world.
According to a new survey, the white marble 15th century mausoleum, is rated after Cambodia's Angkor Wat – recognised best toured with a knowledgeable guide.
The survey, conducted by online travel portal TripAdvisor, noted that Angkor Wat -- a temple complex in Cambodia and the largest religious monument in the world, on a site measuring 162.6 hectares -- has in store fascinating facts about its building process as well as history.
"You can find hundreds of tours and experiences to visit this mesmerizing site, from a private tour with guide and visit at sunset or sunrise, to a visit including a home cooked meal at a local home in Agra," the travel portal said.
"The best views are at dawn or dusk, when the crowds have gone and the lighting reveals its true majesty," Trip Advisor said.
Other popular heritage sites on the survey include the Great Wall of China built by Xu Da of Northern Qi Dynasty in 1368 AD.
Machu Pichu in Peru in South America has bagged the fourth spot with a 5-day hike of the Inca Trail, the 15th century Inca citadel and much more on offer.
Iguazu National Park in Brazil, Italy's Sassi of Matera, Auschwitz Birkenau and historic Krakow in Poland, the old city of Jerusalem in Israel and the historic areas of Istanbul in Turkey have also made to the list.