Container of Miscellaneous Types - C++

So I'm trying to create a "Table" class in C++ with a structure like so:

Table.h

class Table
{
private:
    class TableImpl;
    TableImpl* impl;
};

Table.cpp

class Table::TableImpl
{
private:
    class Row
    {
    private:
        template <typename T>
        class RowDataCell
        {
            T data;
        }
        std::vector<RowDataCell*> data;
    };
    std::vector<Row*> rows;
};

The TableImpl consists of a std::vector of Row objects, and each Row object consists of a std::vector of generic RowDataCell objects. The only thing is, I can't create the std::vector because I need to provide a template argument for RowDataCell*, which will stymie my goals ofhaving a container of miscellaneous objects.

Is there a way using standard C++ that I can accomplish this goal.